However hard one tries, and however many people proofread the text, errors slip through. The following are the ones that got through the sifting system into print. They will, of course, be corrected next time around and are posted here so they can get an airing sooner and so that readers will know that I know about them.

If you know of anything else then I would welcome being told so I can look into it and try and get it right next time round.
You may do this by emailing HERE

Thank you to those who have already supplied corrections.

METROPOLITAN LINE

Page 62 (second para) - the revised direction of running was instituted on 7th November, the work on 3rd October was postponed.
Page 85 (top photo caption) - This is self-evidently Dreadnought loco-hauled stock and not 'T' stock
Page 94 (top para) - the reference to 'road to rail' conversion (now there's an idea) should be 'rail to road'.
 

JUBILEE LINE

Page 5 - The opening date for the Metropolitan Railway should be (10th) January 1863, not December. It is quite extraordinary that so many people missed this, and that I committed the sin in the first place.
Page 22 (last para) - the revised direction of running was instituted on 7th November, the work on 3rd October was postponed.
Page 29 (fourth line up) - "The huge cost of £110-£180 meant..." should, of course, read:
"The huge cost of £110-£180 million meant...".
Page 32 - note the omission of a full stop at end of final word.
Page 78 (line 9) - a spare word "but" has mysteriously appeared in the sentence and should be ignored.
 

DISTRICT LINE,

Page 81 (third paragraph, second line) - "Upton Park" should read "Upney"
 

PICCADILLY LINE,

Page 56 (upper caption) - Each reference to "four-car" train ought to be to a "three-car" train; control trailers never appeared at the head of four car trains. (I hadn't seen this addition).

Also, on page 98, the caption was intended to be read in conjunction with a photo of a 1931 stock car while a 1934 stock car picture has in fact been used. Practically the stock was near identical, but the reference to air-worked end doors should be construed as arriving in 1931, not 1934.

VICTORIA LINE, BAKERLOO LINE, NORTHERN LINE

None noticed yet